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SqlDataSourceView::OnDeleting Method (SqlDataSourceCommandEventArgs^)

.NET Framework (current version)

Other Versions

Raises the Deleting event before the SqlDataSource control attempts a delete operation.

Namespace: System.Web.UI.WebControls
Assembly: System.Web (in System.Web.dll)

Syntax

C++

protected:
virtual void OnDeleting(
	SqlDataSourceCommandEventArgs^ e
)

Parameters

e: Type: System.Web.UI.WebControls::SqlDataSourceCommandEventArgs^
A SqlDataSourceCommandEventArgs that contains the event data.

Remarks

Raising an event invokes the event handler through a delegate. For more information, see NIB: Consuming Events.

The OnDeleting method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors:

When overriding the OnDeleting method in a derived class, be sure to call the OnDeleting method for the base class so that registered delegates receive the event.

The following code example demonstrates how to handle the Deleting event, which is raised before a Delete operation occurs. Because this example deletes data from the Northwind database, an OnDeleting handler is added to attempt to back up the database to disk before the delete is performed.

C++

No code example is currently available or this language may not be supported.

Version Information

.NET Framework
Available since 2.0

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